A-1 Landscaping and Construction, Inc. 7/20/2016

1 173-201A, project permits, environmental commitments, these Specifications and shall be 2 sufficiently protective of fish and other aquatic wildlife. Water Control shall occur after Fish 3 Exclusion for that particular reach or area. 4 5 The Contractor shall develop and submit a Temporary Water Control Plan for review and ' 6 approval by Owner's Representative at least 7 days in advance of water control activities. 7 Provide the Owner's Representative with a minimum of 5 days advance notice of the start of 8 each unique water control activity. 9 10 Water control shall allow flows to bypass the construction area, shall allow for removal of 11 surface water, groundwater and other water entering the construction area, and shall protect 12 adjacent waters from turbidity and other water quality disturbances caused by construction. 13 14 Any pumps used in the diversion/dewatering system shall be placed in flat areas a sufficient 15 distance from the channel and adequately secured (by anchoring to a tree or stake or similar). 16 Pump intakes will be covered with 1/8-inch mesh to prevent entrainment of fish or amphibians, 17 and shall be checked periodically for impingement of fish and amphibians. 18 19 Pumping shall not be continuous and shall only be allowed during regular work hours as defined 20 in the Contract. Pumps shall not be unattended and shall be shut down when the work site is 21 not occupied by the Contractor. ' 22 23 Treat and contain water as needed to adequately remove suspended sediment prior to disposal. 24 Dispose of water in an environmentally acceptable manner, in accordance with project permits, 25 applicable law, and such that property is not damaged. 26 27 As a contingency, maintain at the site sufficient backup equipment as needed to ensure that 28 stream flows will be diverted at all times. Contractor shall have a contingency plan for possible 29 malfunction or failure of equipment such as pumps, plugs, piping and power source. 30 31 Schedule all activities to minimize the length of time during which the dewatering and flow 32 diversion will be nacaccary, to minimize impacts to aquatic resources. 33 34 Temporary Water Control Plan 35 Plan shall include a narrative and drawings as needed to explain the following: 36 1. Description and location of water control 37 2. Schedule and sequence ' 38 a. Fish Exclusion Protocol Plan 39 b. Installation 40 c. Maintenance 41 3. List of Materials and Equipment 42 4. Methods 43 5. Contingency Plans 44 45 46 Seeding, Fertilizing and Mulching 47 48 Section 8-01.3(2)A is supplemented with the following: 49 RIVERFRONT DEVELOPMENT NORTH WETLAND COMPLEX 110